Patents by Inventor Masahiro Ieda
Masahiro Ieda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20190317354Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: ApplicationFiled: June 24, 2019Publication date: October 17, 2019Inventors: Keiichiro ASHIZAWA, Mitsuo NAKATANI, Hiroaki MIWA, Takao TANAKA, Sadafumi HIRAI, Shinichi KAWABE, Makoto SASAKI, Kazuyuki ITO, Masahiro IEDA
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Patent number: 10371991Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: GrantFiled: July 18, 2018Date of Patent: August 6, 2019Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Keiichiro Ashizawa, Mitsuo Nakatani, Hiroaki Miwa, Takao Tanaka, Sadafumi Hirai, Shinichi Kawabe, Makoto Sasaki, Kazuyuki Ito, Masahiro Ieda
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Publication number: 20180321537Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: ApplicationFiled: July 18, 2018Publication date: November 8, 2018Inventors: Keiichiro ASHIZAWA, Mitsuo NAKATANI, Hiroaki MIWA, Takao TANAKA, Sadafumi HIRAI, Shinichi KAWABE, Makoto SASAKI, Kazuyuki ITO, Masahiro IEDA
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Patent number: 10054826Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: GrantFiled: December 29, 2016Date of Patent: August 21, 2018Assignees: Japan Display Inc., Pansonic Liquid Crystal Display Co., Ltd.Inventors: Keiichiro Ashizawa, Mitsuo Nakatani, Hiroaki Miwa, Takao Tanaka, Sadafumi Hirai, Shinichi Kawabe, Makoto Sasaki, Kazuyuki Ito, Masahiro Ieda
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Publication number: 20170108730Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: ApplicationFiled: December 29, 2016Publication date: April 20, 2017Inventors: Keiichiro ASHIZAWA, Mitsuo NAKATANI, Hiroaki MIWA, Takao TANAKA, Sadafumi HIRAI, Shinichi KAWABE, Makoto SASAKI, Kazuyuki ITO, Masahiro IEDA
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Patent number: 9575378Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: GrantFiled: May 21, 2015Date of Patent: February 21, 2017Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Keiichiro Ashizawa, Mitsuo Nakatani, Hiroaki Miwa, Takao Tanaka, Sadafumi Hirai, Shinichi Kawabe, Makoto Sasaki, Kazuyuki Ito, Masahiro Ieda
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Publication number: 20150261031Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: ApplicationFiled: May 21, 2015Publication date: September 17, 2015Inventors: Keiichiro ASHIZAWA, Mitsuo NAKATANI, Hiroaki MIWA, Takao TANAKA, Sadafumi HIRAI, Shinichi KAWABE, Makoto SASAKI, Kazuyuki ITO, Masahiro IEDA
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Patent number: 9069213Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: GrantFiled: March 28, 2014Date of Patent: June 30, 2015Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Keiichiro Ashizawa, Mitsuo Nakatani, Hiroaki Miwa, Takao Tanaka, Sadafumi Hirai, Shinichi Kawabe, Makoto Sasaki, Kazuyuki Ito, Masahiro Ieda
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Publication number: 20140211119Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: ApplicationFiled: March 28, 2014Publication date: July 31, 2014Applicants: Panasonic Liquid Crystal Display Co., Ltd., Japan Display Inc.Inventors: Keiichiro ASHIZAWA, Mitsuo NAKATANI, Hiroaki MIWA, Takao TANAKA, Sadafumi HIRAI, Shinichi KAWABE, Makoto SASAKI, Kazuyuki ITO, Masahiro IEDA
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Patent number: 8724072Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: GrantFiled: February 20, 2013Date of Patent: May 13, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Keiichiro Ashizawa, Mitsuo Nakatani, Hiroaki Miwa, Takao Tanaka, Sadafumi Hirai, Shinichi Kawabe, Makoto Sasaki, Kazuyuki Ito, Masahiro Ieda
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Publication number: 20130162928Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: ApplicationFiled: February 20, 2013Publication date: June 27, 2013Applicants: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Displays, Ltd.Inventors: Keiichiro ASHIZAWA, Mitsuo NAKATANI, Hiroaki MIWA, Takao TANAKA, Sadafumi HIRAI, Shinichi KAWABE, Makoto SASAKI, Kazuyuki ITO, Masahiro IEDA
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Patent number: 8405813Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: GrantFiled: December 8, 2010Date of Patent: March 26, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Keiichiro Ashizawa, Mitsuo Nakatani, Hiroaki Miwa, Takao Tanaka, Sadafumi Hirai, Shinichi Kawabe, Makoto Sasaki, Kazuyuki Ito, Masahiro Ieda
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Publication number: 20110080537Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: ApplicationFiled: December 8, 2010Publication date: April 7, 2011Inventors: Keiichiro Ashizawa, Mitsuo Nakatani, Hiroaki Miwa, Takao Tanaka, Sadafumi Hirai, Shinichi Kawabe, Makoto Sasaki, Kazuyuki Ito, Masahiro Ieda
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Patent number: 7872725Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: GrantFiled: June 30, 2009Date of Patent: January 18, 2011Assignee: Hitachi Displays, Ltd.Inventors: Keiichiro Ashizawa, Mitsuo Nakatani, Hiroaki Miwa, Takao Tanaka, Sadafumi Hirai, Shinichi Kawabe, Makoto Sasaki, Kazuyuki Ito, Masahiro Ieda
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Patent number: 7773189Abstract: A liquid crystal display device is provided that includes a pair of substrates which are arranged to face each other with a liquid crystal therebetween, and columnar spacers that are substantially equal in height formed on a liquid-crystal-side surface of one of the pair of substrates, where the columnar spacers include a first columnar spacer which is in contact with a liquid-crystal-side surface of the other substrate of the pair of substrates and a second columnar spacer which is not contact with the liquid-crystal-side surface of that other substrate.Type: GrantFiled: May 5, 2008Date of Patent: August 10, 2010Assignee: Hitachi Displays, Ltd.Inventors: Keiichiro Ashizawa, Mitsuo Nakatani, Hiroaki Miwa, Takao Tanaka, Sadafumi Hirai, Shinichi Kawabe, Makoto Sasaki, Kazuyuki Ito, Masahiro Ieda
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Publication number: 20100142734Abstract: In correspondence with the left and right external ears of a listener occupying a seat, a three dimensional sound field reproducing unit includes at least more than two speakers disposed on a headrest on the top of a backrest of the seat, and three dimensional signal processing means which converts an output signal from a sound source into a three dimensional sound field signal for supplying it to each of the speakers. Three dimensional sound field with high accuracy and fidelity is reproduced near the external ears of the listener.Type: ApplicationFiled: February 11, 2010Publication date: June 10, 2010Inventors: Daisuke ARAI, Fujio Hayakawa, Toyoaki Kitano, Yutaka Kotani, Yutaka Yamagishi, Masahiro Ieda
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Patent number: 7684577Abstract: In correspondence with the left and right external ears of a listener occupying a seat, a three dimensional sound field reproducing unit includes at least more than two speakers disposed on a headrest on the top of a backrest of the seat, and three dimensional signal processing means which converts an output signal from a sound source into a three dimensional sound field signal for supplying it to each of the speakers. Three dimensional sound field with high accuracy and fidelity is reproduced near the external ears of the listener.Type: GrantFiled: May 28, 2001Date of Patent: March 23, 2010Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Daisuke Arai, Fujio Hayakawa, Toyoaki Kitano, Yutaka Kotani, Yutaka Yamagishi, Masahiro Ieda
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Publication number: 20090268148Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: ApplicationFiled: June 30, 2009Publication date: October 29, 2009Inventors: Keiichiro ASHIZAWA, Mitsuo NAKATANI, Hiroaki MIWA, Takao TANAKA, Sadafumi HIRAI, Shinichi KAWABE, Makoto Sasaki, Kazuyuki ITO, Masahiro IEDA
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Publication number: 20080259267Abstract: A liquid crystal display device with a pair of substrates which are arranged to face each other with liquid crystal therebetween, columnar spacers having the substantially equal height formed on a liquid-crystal-side surface of one substrate, and the columnar spacers include the columnar spacer which is contact with a liquid-crystal-side surface of another substrate and the columnar spacer which is not contact with the liquid-crystal-side surface of another substrate.Type: ApplicationFiled: May 5, 2008Publication date: October 23, 2008Inventors: Keiichiro Ashizawa, Mitsuo Nakatani, Hiroaki Miwa, Takao Tanaka, Sadafumi Hirai, Shinichi Kawabe, Makoto Sasaki, Kazuyuki Ito, Masahiro Ieda
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Patent number: 7440578Abstract: A vehicle-mounted three dimensional sound signal reproducing•silencing unit includes at least two speakers disposed for each of seats to be occupied by listeners so as to generate a three dimensional sound field space in a region inclusive of left and right external ears of each of the listeners, and three dimensional signal processing means for converting an output signal from a sound source into a three dimensional sound field signal for supplying it to each of the speakers, thereby reproducing a three dimensional sound field with rich presence for each of the seats. The unit also includes antiphase signal generating means for supplying a silencing signal to the three dimensional signal processing means, thereby silencing sounds for each of the seats without giving an effect on the other seats.Type: GrantFiled: May 28, 2001Date of Patent: October 21, 2008Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Daisuke Arai, Fujio Hayakawa, Toyoaki Kitano, Yutaka Kotani, Yutaka Yamagishi, Masahiro Ieda